baber/WOPTO huggingface dataset:
Patent DE-4219375-A1 (DE)
Title: 1,3-Di:sila cyclobutane(s) for silicon carbide prods. - mfd. by pyrolysing alkoxy tri:sila alkane(s) at 400-800 deg. C. at atmos. pressure or vacuum, avoiding alkali metal, for high yield and purity
Inventor: JUNG IL NAM
IPC: C07F7/08
Filed: 1992-06-15
Abstract: 1,3-disilacyclobutanes are of formula (I); and R1-R4 = Me, OMe, OEt or Ph. Prodn. comprises pyrolysis of alkoxy-trisila-alkane derivs. of formula (II) (with R5 as for other R gps.) at 400-800 deg. C at atmos. pressure or under vacuum. Pref. (I) have R1 = R4 = Me and R2 = R3 = OMe, or R1-R3 = OMe and R4 = Me, or R1-R4 = OMe, or R1 = OMe, R2 = R3 = Cl and R4 = Me, or R1 = R4 = OMe and R2 = R3 = Cl, or R1 = R4 = OEt and R2 = R3 = Cl. Pref. (II) are obtd., e.g. by reacting chloromethylsilanes of formula R1R2R3SiCH2Cl with Si in the presence of Cu catalysts, as described in Korean Pat. Appl. No. 91-1055, and reacting with R4MgCl and/or with an alcohol R5OH. USE/ADVANTAGE - Prod. mixts. can be sepd. by distn..
Patent DE-4219635-A1 (DE)
Title: Articulated frame steering for agricultural or forestry vehicle - uses two pivot points between two vehicle sections, which pivot about one and/or both points
Inventor: DENSCHEILMANN UWE
IPC: B62D12/00
Filed: 1992-06-16
Abstract: The vehicle consists of two sections, each with wheels or crawlers, etc, which are connected via an articulated steering section. The vehicle sections may be pivoted relative to each other, to change direction of travel, between a straight position and a relatively angled position. The vehicle sections (3,4) are joined to each other via two pivot points (22,23), which are located opposite to each other at right angles to the direction of travel (2). The sections are pivoted about one and/or the other of these points corresponding to the desired travel direction. Angling movement to one longitudinal side (13), beginning from a straight position, is by pivoting about the point associated with this side. USE/ADVANTAGE - Articulated frame steering for agricultural or forestry vehicle gives compact short vehicle construction, permits large steering angles.
Patent DE-4220564-A1 (DE)
Title: Graft copolymers prodn. - by emulsion polymerisation of unsatd. monomer(s) on rubber particles, with addn. of at least 50 wt. per cent of the rubber after initiation
Inventor: WITTMANN DIETER DIPL CHEM DR
IPC: C08F291/02
Filed: 1992-06-24
Abstract: Graft copolymers (I) are produced by emulsion polymerisation of (A) 10-49 wt.% vinyl aromatic, vinyl cyanide, 1-8C alkyl (meth)acrylate, (meth)acrylic acid and/or unsatd. dicarboxylic acid or derivs. thereof on (B) 51-90 wt.% rubber particles with Tg below 0 deg.C. Less than 50 wt.% of the rubber (B) is present at the start; then, after radical initiation of polymerisation, the rest of (B) (at least 50 wt.%) is gradually added together with monomer(s) (A) during polymerisation and the reaction is completed. (I) is based on 20-47 wt.% (A) and 53-80 wt.% (B); less than 30 (pref. less than 15) wt.% (B) is present initially, and at least 70 (pref. at least 85) wt.% (B) is added during polymerisation. (A) consists of 50-90 wt.% styrene and 10-50 wt.% acrylonitrile, and (B) is a diene or acrylate rubber. Pref., (B) is polybutadiene, polyisoprene or a (co)polymer of alkyl acrylate (e.g. ethyl, butyl, 2-ethylhexyl acrylate) or chloroethyl acrylate etc., with d50 0.1-0.6 micron and gel content at least 40 wt.%. Crosslinking comonomers such as triallyl (iso)cyanurate or triallylbenzenes can also be added. Pref., polymerisation temp. is 50-80 deg.C and the monomers are added over a slightly longer time than the rubber; suitable initiators include di-tert.-butyl peroxide, AIBN, K perdisulphate, redoc initiators, etc. USE/ADVANTAGE - Used as thermoplastic moulding materials or as components of thermoplastic moulding materials based on (I) and thermoplastic resin, pref. a styrene (co)polymer, aromatic polycarbonate or polyester-carbonate, or polyalkylene terephthalate (claimed). The process enables the prodn. of graft copolymers and moulding materials derived therefrom with improved properties, esp. low gloss, good resistance to stress cracking (in contact with motor fuel etc.), high notched impact strength (even at low temp.) and good processability by injection moulding or extrusion blow moulding. These properties are useful e.g. in interior parts for cars etc.
Patent DE-4227955-A1 (DE)
Title: Recording HDTV pictures on standard video recorder - dividing information of each picture line into two successive time slots corresp. to period of normal lines from video tape
Inventor: KUEHN KLAUS DIPL ING
IPC: H04N5/77
Filed: 1992-08-22
Abstract: The method allows TV pictures picked up from a high resolution camera to be recorded on the video tape of a commonly available video recorder. The number of pixels of the geometric lines of the t.v. picture is greater than the number of pixels per line picked up by the video recorder. The information from each line of the t.v. picture is divided into two successive time sections corresponding to the period of t.v. normal lines recorded on the video tape. The division is preferably carried out directly by the sensor or camera.
Patent DE-4230635-A1 (DE)
Title: Mobile composting container with cooled ambient air system - has self-sufficient venting system in the circuit of which a cooler is inserted.
Inventor: TRUEMPER-BOEDEMANN EHRHARD
IPC: C05F17/02
Filed: 1992-09-12
Abstract: The contaienr (1) filled with compostable material has closable openings (2) for loading and unloading. Venting tubes (3) are divided and can be cut off by valves (5), being provided with air outlet apertures. A blower (8) sucks air via a pipe conduit (4) out of the upper part of the container (1) and presses it into the cooler (9) and from their via the valves (5) and the venting tubes (3) into the container (1) again. From a regulatable branch valve (6) this circuit has a part quantity removed from it and via an odour filter (10) discharged into the atmos.. On the container (1) is fitted a safety valve (7) which prevents a harmful vacuum appertaining in the container. USE/ADVANTAGE - For the compositing of bio-waste matter. The container used is mobile and suitable for movement by road, obviates smell pollution of the atmos., and obviates the risk of damage during loading and unloading.
Patent DE-4237560-A1 (DE)
IPC: B23B39/16
Filed: 1992-11-06
Abstract: So that drilling machines with at least two drilling spindles with coupling pieces for drills can be reset to changed patterns of drill holes, an adapter is provided which consists of a housing with two input shafts (15, 16) parallel to one another, the spacing of which corresponds to the spacing of the two drilling spindles and the shape of which corresponds to the shanks of the drills to be fastened in the drilling spindles. Drilling spindles (17, 18) or groups of drilling spindles (17, 26) connected to one another by gearing and having coupling pieces for drills are arranged on the opposite side of the housing, of which each or each group is in drive connection with one of the two input shafts (15, 16). <IMAGE>
Patent DE-4241202-A1 (DE)
Title: Amphibian guide fence for restraining creatures esp. in spawning time - comprises self spring-back holder components and natural fibre weave automatically springing back, for upper arch of dividing and guiding weave in shape and height
Inventor: HASLINGER MAX
IPC: E01F9/685
Filed: 1992-12-08
Abstract: The fence of a natural fibre dividing and guide weave (8) and several holder components. The weave on the upper edge automatically springs back, guaranteeing the upper arching of the dividing and guide weave in shape and height. The dividing and guide weave is of coconut fibre weave with a specific number of warp and weft threads per measurement unit and with a specific surface wt. per sq. m. The dividing and guide weave on the lower edge is securely fixed in position by the depth limiter and the weave lower holder of the holding component and dependent upon the form of the land is shortened by fold formation. On the upper edge, the dividing and guide weave is fixed securely in position by a holder component rotary cross-bar fitted to a double spiral spring. USE/ADVANTAGE - As an amphibian guide fence. Restrains creatures, esp. during the spawning time, from wandering along road edges.
Patent DE-4304363-A1 (DE)
Title: Agitating machine mixer - has quantity or weight meter in control loop for regulation of throughput
Inventor: GEIGER ARMIN
IPC: B02C17/16
Filed: 1993-02-13
Abstract: The stirring mechanism mill (1) contains a pump which pumps material through a chamber and a throughput controller.  The controller has a container (15,17) in the pipeline (14) carrying the material for direct measurement of throughput vol. and/or wt. The throughput measurement device contains a vessel (15) charged from the mill output with an outlet valve (17) for alternately allowing and stopping the flow of meal through the vessel. ADVANTAGE - The accuracy of measurement is not only maintained over a long operating life, but is increased with time.
Patent DE-4304392-A1 (DE)
Title: Method and device for detecting faults in a perforated, moving web of material
Inventor: KIRMES KARL-HEINZ
IPC: D06H3/08
Filed: 1993-02-13
Abstract: In a method and a device for detecting faults in a perforated, moving web of material (1) the change in physical or geometric conditions of the surroundings is received from the direction of the web of material (1) on one side of the web of material by means of at last one sensor and is converted into an electric signal and the signal is evaluated in an evaluation device. In order to detect faulty perforations, a counter (6 to 9) advantageously receives clock pulses from a clock generator (11) in the time between two successive signals and adds the said clock pulses until it is reset by the subsequent signal, the said counter then signalling a fault if the number of added clock pulses exceeds a limit value or the counter overruns. The adaptation of the device to perforations of different sizes is effected by adjusting the clock frequency of the clock generator (11). <IMAGE>
Patent DE-4304546-A1 (DE)
Title: Cable terminating box
Inventor: HARJES BERND DR ING
IPC: G01D5/26
Filed: 1993-02-11
Abstract: The invention relates to a cable terminating box (14a, 14b) for the end of a movable cable (1) with high tensile strength having at least one optical fibre (6, 6') constructed as a distributed sensor, at least one carrier (21) for optical fibres and a removable hood (14b). The terminating box essentially comprises a box base (14a) and a removable box hood (14b). The terminating box is of modular construction. When using sensors which are distributed over the whole length of the cable the problem exists that the distributed sensor is to be sensitive for external physical parameters (such as pressure, temperature or expansion) over the entire length of the cable and at the cable end. Such cables are to be preferably used in great lengths, under extreme conditions and in a manner in which they are accessible only from one side, for example for measurements in drilled holes. The cable elements are accommodated in the terminating box in a protected manner, the sensors are, however, still in close contact with the medium which surrounds the terminating box. In the terminating box the sensors are easily accessible from outside. <IMAGE>
Patent DE-4309880-A1 (DE)
Title: Method of controlling the temperature of moulds for plastics processing
Inventor: LIEHR ERICH DR
IPC: B29C45/78
Filed: 1993-03-26
Abstract: In conventional methods of temperature control, an adaptation of the temperature conditions to the process parameters at any one moment is not possible, and it is not possible to compensate for disturbances in the injection-moulding process nor the unfavourable position of cooling surfaces with respect to the mould contour in the case of complicated moulds. Taking these disadvantages as a starting point, the object was to provide a method which, while taking into account the parameters of the injection-moulding operation at any given moment, including disturbances of the process which occur, ensures adequately good adaptation of the average mould temperature to a set temperature, to be predetermined, with simultaneously self-adjusting control, and which operates without additional energy. As a solution, it is proposed that the temperature-controlling process is separated into two phases, an initial phase and a steady-state operating phase, with different temperature-controlling conditions in each case, the initial phase being ended after the predetermined set mould temperature is reached or exceeded for the first time, and the average mould temperature being measured continuously throughout the entire cycle at a precisely defined location and a surge of coolant which takes into consideration the temperature control in the previous cycles being introduced at the point in time Z2, which is fixed by a signal of the machine sequence control at a time close to the injection operation, in order ... in the time period of greatest temperature difference between injected melt and ... Original abstract incomplete. <IMAGE>
Patent DE-4311933-A1 (DE)
Inventor: HERRMANN MATTHIAS
IPC: H03J1/00
Filed: 1993-04-10
Abstract: In a circuit for generating a stop signal for a scanning action in a broadcast receiver, in which a received signal is demodulated and also a signal dependent on the respective field strength is derived, the direct-voltage component of the demodulated signal is formed. A stop signal is generated when the direct-voltage component is below a predetermined value and the field strength is above a predetermined value. <IMAGE>
Patent DE-4317509-A1 (DE)
Inventor: GAISER MARTIN-ULRICH
IPC: B02C18/22
Filed: 1993-05-26
Abstract: The device is used to accommodate and comminute foliage, hedge cuttings and similar garden waste. It travels as an independent vehicle or as a trailer and removes the material from the ground by means of brush-like receiving elements (9) on a rotating roller (8). From thence, the material is passed onto a metering device (5), which is composed of parallel shafts having radial elements (6). Adjustable metering is carried out by means of rotation in steps of the shafts, the material falling in larger or smaller quantities into a comminuting device (1). The material is comminuted by means of knives on a rotating drum (2) which moves past fixed counter cutters (3). The material falls through a grid (4) which is adjustable down onto the ground or into a receiving container. <IMAGE>
Patent DE-4319162-A1 (DE)
Title: Hydraulic valve, in particular for controlling a hydraulic actuator in a system for the rolling stabilisation of a motor vehicle
Inventor: ZAPF FRIEDRICH
IPC: F15B13/04
Filed: 1993-06-09
Abstract: The invention relates to a hydraulic valve which is intended to be used in particular for controlling a hydraulic actuator in a system for the rolling stabilisation of a motor vehicle. A known valve of this type has a valve piston via which a first consumer connection and a second consumer connection can be alternately connected to a pressure connection and a tank connection and which can be displaced from a spring-centred, middle rest position for connecting the first consumer connection to the pressure connection and the second consumer connection to the tank connection by means of a first electromagnet in a first direction and for transposed connecting by means of a second electromagnet in an opposite, second direction. During rolling stabilisation, the pressure in one consumer connection is to be set to a certain value as a function of certain operating parameters. In a known system, a separate proportional pressure-relief valve is provided for this purpose. The object of the invention is to combine the pressure-relief valve and the directional control valve in a single valve. This is achieved by the two electromagnets being proportional magnets, by the pressure in the second consumer connection ... on the valve piston in such a way as to load the latter in the first direction and by the pressure in the first consumer connection ... on the valve piston in such a way as to load the latter in the second direction ... Original abstract incomplete.
Patent DE-4320412-A1 (DE)
Title: Plastic crate
Inventor: GOETZ WILHELM
IPC: B65D1/24
Filed: 1993-06-22
Abstract: A crate (1) made of plastic for receiving a number of bottles (9), in particular beverage bottles, having a grid bottom (2), four side walls (5, 6) and compartments for receiving the individual bottles, partitions (7, 8) preferably being provided to form the compartments, and the contact points of the bottles (9) with the crate (1) being designed to have a relatively small surface. According to the invention, this can be provided both in the circumferential region of the bottles (9) and at their bottoms. <IMAGE>
Patent DE-4324587-A1 (DE)
Title: Ring spinning frame - has separable yarn guide rail from ring rail for ease of maintenance
Inventor: LATTION ANDRE
IPC: D01H1/16
Filed: 1993-07-22
Abstract: A spinning frame has a series of spinning positions on a rail with yarn guides held above them. The yarn guides are fixed on a rail which separates from the spinning positions rail. Pref. the ring rail (14) is angled to hold a ring surrounding the spindle, and has a projection rising at the back to align with the bottom angle of the yarn guide rail (16). These are made of sheet metal. Between the two is a sliding surface (13). The ring rail has a rectangular cut-out (146) at intervals, which can fit up inside the back of a bracket (162) which is U-shaped, giving reinforcement to the angular support of the rail (16), which retains the yarn guide horizontally. This top rail has a bend (164, 165) to which is attached the guide bracket (15), holding circular balloon restriction guides (20), or similar. Separators may also be fixed to the rail (16) so that these lie between each spindle and the next. ADVANTAGE - Maintenance is made much easier as the balloon restriction yarn guides can be separated from the ring rail.
Patent DE-4325416-A1 (DE)
Title: Apparatus for palletising piece goods
Inventor: KAISINGER ROLF
IPC: B65G51/03
Filed: 1993-07-29
Abstract: The invention relates to an apparatus for palletising containers or piece goods, having a discharge platform which can be moved, on an apparatus framework, from a receiving position for receiving a layer of piece goods into a discharge position in which the layer of piece goods on the discharge platform is deposited onto a waiting pallet or onto a layer of piece goods which have already been deposited there. In order to reduce the frictional forces between the piece goods and the discharge platform during receiving and discharging, the discharge platform exhibits, on its upper side, outlet openings for the outlet of a gaseous pressure medium, for example compressed air, which acts on the underside of the piece goods.
Patent DE-4328160-A1 (DE)
Title: Helical screw for plastic extruder - having special corrosion and wear resistant tips to screw threads
Inventor: KAISER HARTMUT DR ING
IPC: B29C48/08
Filed: 1993-08-21
Abstract: Helical screw for plastic extruder is made of a steel core (2) with a monolithic support (3) for the threads (4). The support is made by hot isostatic pressing a metal powder which has good corrosion and wear resistant properties. Finally the thread covers (5) are hot isostatically produced using a metal with better wear and corrosion properties than that of the support (3). By hot isostatically forming the three parts together a diffusion layer is built between each part. ADVANTAGE - The screw is economically produced with good mechanical, corrosion and wear properties.
Patent DE-4329003-A1 (DE)
Title: Hi-fi loudspeaker with low bass facility
Inventor: JANEKE JACK
IPC: H04R3/14
Filed: 1993-08-28
Abstract: A hi-fi loudspeaker with facilities for electroacoustic sound conversion in separate frequency bands, with frequency filters for dividing the electrical drive signals to the associated frequency bands and with a bass facility and a low bass facility having in each case separate closed enclosure chambers and transducer systems, the resonant frequency of the bass facility being higher than that of the low bass facility and the low bass facility having applied to it signals which are not dropped towards the low frequencies, is characterised by the fact that the bass facility is also supplied with signals which are not dropped towards the low frequencies and that the low bass facility is supplied with signals which are dropped towards high frequencies from a starting frequency which is below its resonant frequency.
Patent DE-4329716-A1 (DE)
Title: Device for coating an optical fibre
Inventor: LYSSON HANS-JUERGEN DIPL ING
IPC: C03C25/12
Filed: 1993-09-03
Abstract: A device for coating an optical fibre (1) has a coating chamber (25) into which a coating material can be fed and through which the fibre (1) can be guided. In the passage direction of the fibre (1), upstream of the coating chamber (25), there is arranged a wiping unit (5) which has a wiping chamber (51) passed through by the fibre (1). The wiping unit (5) has a plurality of gas supply channels (59) inclined obliquely opposite to the passage direction of the fibre (1) and connected to the wiping chamber (51), as well as a plurality of gas supply channels (61) inclined obliquely in the passage direction of the fibre (1) and connected to the wiping chamber (51). <IMAGE>
Patent DE-4331024-A1 (DE)
Title: FFT-based method for determining the stationary rotational speed and unbalances of input and output drive shafts of all types
Inventor: BAUMANN GEORG DIPL ING
IPC: G01M1/22
Filed: 1993-09-13
Abstract: Published without abstract.
Patent DE-4334172-A1 (DE)
Title: Control of motor vehicle automatic gear change-up - involves hydraulic brake pressure maintained at limit of slip until applied torque and transmission capacity fall simultaneously to zero
Inventor: REMMLINGER ULRICH DR ING
IPC: F16H59/44
Filed: 1993-10-07
Abstract: The operation commences at a time (t0) when the modulator current for the electrohydraulic valve of the brake (B) to be disengaged is reduced, and the current for the valve of the clutch (K) to be engaged is increased. From the time (t1) of extinction of the brake valve current, the clutch valve current continues to rise for a further brief interval before levelling-off. The pressure gradients are determined by the first interval (t0-t1) and the rise can be prolonged until the time (t2) of attainment of the final steady current. ADVANTAGE - Gear-changing is smoothed with operations precisely timed at instants of reversal of direction and attainment of output torque appropriate to the higher ratio.
Patent DE-4335446-A1 (DE)
Title: Multifunctional climate luminaire (2)
Inventor: KOESTER HELMUT DIPL ING
IPC: F21S11/00
Filed: 1993-10-18
Abstract: The invention relates to a luminaire which has a daylight reflector which is arranged between the lower window part and the skylight and fulfils several functions. It serves to guide the light of the luminous means, arranged below the daylight reflector, onto the work table close to the window and to guide the daylight which enters through the skylight, the low winter sun being reflected by the daylight reflector onto the ceiling and into the rear part of the interior space, while the high summer sun is reflected back into the exterior space. This is achieved by a parabolic shaping of the daylight reflector which is inclined more steeply towards the window and whose inclination decreases towards the interior space.